- 學位論文
老花眼患者使用多焦點鏡片和單焦點單視鏡片的比較
Comparison of visual functions in presbyope wearing progressive addition lenses and monovision single vision lenses
摘要
近年來，全球老年化人口不斷增加，而老花眼卻是困擾著許多人的視力問題，老花眼往往表現在年紀大約 40 到 45 歲，老花眼目前用眼鏡解決的方式分別有：雙光鏡片、多焦點鏡片和單焦點鏡片，目前市場的主流多為多焦點鏡片和單焦點鏡片，多焦點鏡片的設計為同步視覺的設計，同樣是同步視覺設計的單焦點鏡片，與多焦點最大的差異就是在看遠方與近方時不能同時清楚，所以必須有兩付不同度鏡的眼鏡，因而本實驗採用單焦點鏡片搭配單眼視的驗配法來與多焦點鏡片做比較。單眼視的驗配屬於不同步視覺的設計，但卻能解決老花眼患者需要看遠看近的需求，因而本實驗將對這兩種設計分別進行雙眼遠距VA、雙眼近距VA、遠距對比敏感度、近距清晰範圍、立體視和問卷等進行調查與分析。 參加實驗的人數為六十人，分為三個群組，分別是0至+3.00D、0至-3.00D和-3.00D至-6.00D，每群組皆為20人，隨機分配配戴多焦鏡片或單眼視鏡片，受測者的適合性被確認後，即隨機分配戴多焦點眼鏡或使用單眼視的單一視力眼鏡。鏡框的選擇由驗配人員協助挑選適合患者臉形同時能符合鏡片設計的要求，進行準確驗配後，受試者進行試戴眼鏡1個月。在配戴一個星期後寄發電子郵件給每位受試者確認是否有持續配合此實驗要求，在所有參加研究測試者前個月配戴漸進多焦者改戴單焦單視鏡片，前個月配戴單焦單視鏡片改戴漸進多焦鏡片。 結果與結論：多焦點與單眼視雙眼遠距和近距的log MAR VA均有顯著差異(P＜0.05)；在近距離清晰範圍這部分也都是顯著差異(P＜0.05)，整體而言表明多焦點與單眼視差異並不大。雖然在統計學上部份視覺功能有顯著差異，但其差異並不大，加上需考慮其個人需求的不同，單眼視仍可能是老花眼患者的較好選擇。
並列摘要
In recent years, the world's aging population is increasing.Presbyopia is a common vision problem in this population. Presbyopia tends to manifest itself around the age of 40 to 45 years, glasses is currently used to solve the problem of presbyopia .These can be in the forms of bifocal lenses, multifocal lenses and monofocal reading lenses. In Taiwan the forms of correction are multifocal lenses and monofocal lenses. Multifocal lenses are designed for simultaneous-image viewing. The biggest difference between multifocal and monofocal that is when viewing distant and near objects monofocal can not provide clear image at both distance and near, so two pairs of glasses with different prescription is prescribed for D and N. In the present study, single-focus lens with monovision fitting method is compared with multifocal lens. Although monovision fitting does not provide binocularity , it can address the needs of presbyopes to see near and distance with one pair of glass. Thus, the present study investigates and analyzes binocular distant VA, binocular near VA, distance contrast sensitivity, near clear range and stereopsis of presbyopic patient’s wearing the two forms of these two lens design. Questionnaires were also given to these patient’s to investigate these two lens design . Sixty participants are divided into three groups, (0 to + 3.00D, 0 to -3.00D and -3.00D to -6.00D) with 20 people per group. Subjects are assigned to wear multifocal glasses or monovision single vision glasses, after the subject's suitability has been acknowledged. Frame selected were assisted by optometrist to assist the selection for. After proper fitting of lenses and frames the glasses for one switch to the other lens fitting mode for another month. Order of the wearing made is randomly assigned. After a week of wear, an email was sent to each participant to confirm the subject’s wearing the continuation of agreement . The experiment and inform of the requirements of research and testing, by all participants in the previous month by wearing progressive multifocal change to wear monofocal single vision lens, before a month may wear monofocal single vision lens change wearing progressive multifocal lenses. Our results show multifocal and monovision binocular distance and near log MAR VA ; near clear range are significantly differences P <0.05. In general multifocal and monovision almost was little difference. Although there are statistically significant differences, the differences are not large, when other factors such as different individual needs. Therefore monovision may still be a better choice for some presbyopic patients.